Mile per hour to Kilometer per hour Converter
1 mph = 1.609344 km/h — convert instantly with formula and table.
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Quick answer: one mile per hour equals 1.6093 kilometers per hour. So to convert miles per hour to kilometers per hour, multiply by 1.609344.
How to convert miles per hour to kilometers per hour
kilometers per hour = miles per hour × 1.6093439999
Miles per hour governs road speeds in the US and UK. One mph is exactly 1.609344 km/h.
Kilometers per hour is the road-speed unit of most of the world; 100 km/h is the classic highway limit, equal to about 62 mph.
Mile per hour to Kilometer per hour conversion table
| Mile per hour (mph) | Kilometer per hour (km/h) |
|---|---|
| 0.01 mph | 0.016093 km/h |
| 0.1 mph | 0.160934 km/h |
| 0.25 mph | 0.402336 km/h |
| 0.4 mph | 0.643738 km/h |
| 0.75 mph | 1.207 km/h |
| 1.25 mph | 2.0117 km/h |
| 1.75 mph | 2.8164 km/h |
| 2.5 mph | 4.0234 km/h |
| 3.5 mph | 5.6327 km/h |
| 4.5 mph | 7.242 km/h |
| 6 mph | 9.6561 km/h |
| 8 mph | 12.8748 km/h |
| 10 mph | 16.0934 km/h |
| 12 mph | 19.3121 km/h |
| 14 mph | 22.5308 km/h |
| 16 mph | 25.7495 km/h |
| 18 mph | 28.9682 km/h |
| 20 mph | 32.1869 km/h |
| 24 mph | 38.6243 km/h |
| 26 mph | 41.8429 km/h |
| 30 mph | 48.2803 km/h |
| 35 mph | 56.327 km/h |
| 45 mph | 72.4205 km/h |
| 55 mph | 88.5139 km/h |
| 65 mph | 104.6074 km/h |
| 75 mph | 120.7008 km/h |
| 85 mph | 136.7942 km/h |
| 95 mph | 152.8877 km/h |
| 110 mph | 177.0278 km/h |
| 125 mph | 201.168 km/h |
| 175 mph | 281.6352 km/h |
| 250 mph | 402.336 km/h |
| 350 mph | 563.2704 km/h |
| 450 mph | 724.2048 km/h |
| 600 mph | 965.6064 km/h |
| 750 mph | 1,207.01 km/h |
| 900 mph | 1,448.41 km/h |
| 1,500 mph | 2,414.02 km/h |
| 2,500 mph | 4,023.36 km/h |
| 10,000 mph | 16,093.44 km/h |
Need the opposite direction? Use the Kilometer per hour to Mile per hour converter, or read our complete guide to speed conversions for every formula in one place.
Frequently asked questions
How many kilometers per hour are in one mile per hour?
One mile per hour equals 1.6093 kilometers per hour. Multiply any mile per hour value by 1.609344 to get kilometers per hour.
What is 10 miles per hour in kilometers per hour?
10 miles per hour equal 16.0934 kilometers per hour (10 × 1.609344).
Is the mile per hour to kilometer per hour conversion exact?
The conversion factor used here (1.6093439999) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.